We study the Hamming distance d/sub H/(X,Y) between two independent identical distributed (i.i.d.) random n-tuples X and Y over some finite set, both lower and upper bounds are derived for the expectation Ed/sub H/(X,Y) and the variance Dd/sub H/(X,Y). Also, a generalization of the Grey-Rankin bound is given.
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机译：我们研究了某个有限集上两个独立的相同分布（iid）随机n元组X和Y之间的汉明距离d / sub H /（X，Y），得出了期望值Ed / sub H /的上下限（X，Y）和方差Dd / sub H /（X，Y）。另外，给出了格雷-朗金界的推广。
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